[Rock-dev] Fwd: Re: Fwd: Re: IMUSensor - temperature and inclinometers values

[Alexander Duda]

On 09/27/2012 09:04 AM, Matthias Goldhoorn wrote:
> On 27.09.2012 08:51, Jakob Schwendner wrote:
>> On 09/26/2012 04:59 PM, Alexander Duda wrote:
>>> On 09/26/2012 04:24 PM, Matthias Goldhoorn wrote:
>>>> On 26.09.2012 16:22, Javier Hidalgo Carrió wrote:
>>>>> On 09/26/2012 03:33 PM, Matthias Goldhoorn wrote:
>>>>>> Hmh,
>>>>>>
>>>>>> i think we should add base::Temperature analog to base::angle 
>>>>>> WITHOUT an timestamp, becasue the temperature can then be added 
>>>>>> to any class without duplicate the time field.
>>>>>>
>>>>> In this case we will not be able to log the temperature alone in a 
>>>>> port with a timestamp. We will need to use the timestamp from 
>>>>> other port.
>>>> Thats the reason why you should add also the 
>>>> "base::TemperatureReading" type, which includes the time and the 
>>>> base::Temperature ;).
>>>>
>>>> In general in the past i was for an generic data type Stamped<T> 
>>>> which is in general for this kind of thinks, but there was some 
>>>> points against this, but i would like to point to it again ;).
>>>
>>> I do see Matthias point but I would rather go for:
>>> base::Temperature
>>> and
>>> struct base::samples::Temperature
>>> {
>>>     base::Time time;
>>>     base::Temperature temperature;
>>> }
>>>
>>> Alex
>>>
>> This seems to be most consistent with what we already have. Come to 
>> think of it I wouldn't even mind having an origin string field in the 
>> base::samples::Temperature type, as Matthias suggested.
> One addition why i would like to have an origin field, the origin 
> field could be used for some user GUIs, that can be created automatic 
> an overview over all system temperatures, without needing the 
> gui-creation-user to know where temperature sensor is located, and 
> from what task they came and where the device for the task is located 
> inside the system. (for manual connecting gui-parts with tasks)

I am against adding a description field as this is doubling the 
mechanism of the transformer.
In general the transformer stack knows where each temperature sensor is 
located if the frame and static transformation is correctly set. 
Furthermore sending the same string over and over again, filling up our 
log files, has a bad taste.

see 
http://www.rock-robotics.org/stable/documentation/data_processing/transformer.html 
for more informations.


Alex


>>
>> Jakob
>>
>>
>>
>>
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>
>
> -- 
>   Dipl.-Inf. Matthias Goldhoorn
>   Space and Underwater Robotic
>
>   Universität Bremen
>   FB 3 - Mathematik und Informatik
>   AG Robotik
>   Robert-Hooke-Straße 5
>   28359 Bremen, Germany
>
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>
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>
>
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-- 
Dipl.-Ing. Alexander Duda
Unterwasserrobotik

DFKI Bremen
Robotics Innovation Center
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28359 Bremen, Germany

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E-Mail: alexander.duda at dfki.de

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